E.C.A. CA 24 BB - Page 8

5 6 7
20
MAIN
BOARD SUPPLY CABLE
2
FAN
3 PUMP
5 IONIZATION ELECTRODE
6
IGNITION ELECTRODE (EARTH)
7
IGNITION ELECTRODE
8
ON/OFF SWITCH
9 FUSE2A
CA24 HB
~--G
8 ~ 9
Vl I 1 23DVAC !Ill l~~~
2
31
10
32
~-lr_-5
''I I I •
15
L
-17
10 TERMINAL WITH FUSE 20 GAS VALVE
33
11
0
11 10k RESISTOR 31 ROOM THERMOSTAT (OPTIONAL)
12 DHW SENSOR 32 TIMER (OPTIONAL)
13 CH SENSOR 33 TERMINAL (4 POLES)
14 DIFFERENTIAL AIR PRES. SWITCH 34 TIMER SUPPLY (OPTIONAL)
15 WATER FLOW SENSOR
41 LED L3
16 WATER
PRESSURE SWITCH
17 LIMIT THERMOSTAT
42 LED L4
43 LED L6
49
G
44 43 42 41
0 0 0 0
47 46
121 121
48
G
4500
121
I Oo
44 LED L7
45 RESET BUTTON
46 PB3 SERVICE BUTTON
47 PB4 CHIMNEY-SWEEP BUTTON
~
~
48 CH TEMP. CONTROL POTENTIOMETER
49 DHW TEMP. CONTROL POTENTIOMETER
CD